Testing temp gauge.

[KarlT]

Had a poke round my senders (1.6TD), worked out which were which. Think they're ok so attention moved to dash.

If I connect a battery straight across the gauge will the needle jump straight up if its working? Won't do any damage, will it? If it still doesn't burge then does that mean its bu88ered?

Cheers ma' dears!

[Syncro G]

Yes that will work but it won't tell you anything other than the guage works, not its accuracy. If you go to maplins and pick up the cheepest potentiometer that goes about 0-500+Ohms you can check its accuracy with a multimeter. Haven't got bentley to hand but it says what the guage should read at certain resistances, so useing the multimeter set the potentiometer to whats spec'd and see what happens. The scale will be exponential but does work down to very low resistances so clean contacts are a must, and could be the route of inacuracy rather than the clock/sender.

Remember neadle is very overdamped so will take a while to reach value.